Perforated combustion-tube.



H. RUPPEL.

P-ERFORATED COMBUSYION TUBE. APPLICATION FILED ram/12.1915.

191 0 Patntbd NOV- UNITED STATES PATENT 5 OFFICE."

H NRY BUPPEL, or CLEVELAND, 0310-, ASSIlGNOR' T0 AMERIcAn s'rovn COMPANY, or

sum-Louis; MISSOURI}. A CORPORATION or?" NEW JERSEY.

PERFORATED"COMBUSTION-TUBE. I

Application filed Hay 12, 1915. Serial No, 27,651.

; Togallwho'm it may concern Be -'it-. known. that I, HESRI RUPPEL,

citizen 'of'zthe vU nited:.S tz 1tes, residing at Cleveland, iuthe county of Cuyahoga and fitateol. .Ohio', have invented certain new an'l"use'fi 1l- Improvements 1n--Perforated Combustion-Tubes, of" which the following -is a specification, reference being'had' therei-nto'the accompanying drawing perforated comlg stiontfubes.

Theobject. of 'my invention is to. provide a perforated combustion tube whichi'will cause the gas and air to properly. mix as:

they travel up, sothat-whenthe gas reaches the upper end of the tube the proper mixing of thej'air has taken place-so'that an 'abso-' lutely odorlessflame is-obtained. 7

Another object of my invention is to proride-a simple, cheap and" more effective per-- -'forated"combusti0n tube having certain details'o'f structure and arrangement of parts ner einafter more fully described." In' the accompanying drawings,

figure l is a vertical sectionalyiew of the p rforatedi combustion'tube embodying my invention and sh owing it applied to the ordinary wick burner view taken on the line 2 2 of Fig.1. Fig. 3 is a vertical sectional iew broken. away of a modified form of combustiontubes.

In perforated combustion sections Qof the ordinary type in which two-straight 'oncens trically arranged tubes have been used and between which thegas is mixed with the air, it has been found that the air and gas do not at all times properly mix soa's' to insurethe 'p1-oper mixture and the" burner oftenthrows off a disagreeable odor owing .to'the fact that the air and gas have .not been proper] mixed. Owing to the arrangement 0% the corrugations of my improved tubes, or the corrugations of thejacket. the air and gas are thrown against the corrugated walls of the .tubesand obviates the ,litficulties found in perforated c'ombustion tubes having two concentric tubes.

Relcrring now to the drawings, 1 represents the inner combustion tubev and 2.the

outer combustion tubewhich have at. their lower ends the vertically disposed concen trically 'arranged portions 3 andyl which- .rest upon the inwardly and outwardly extending flanges 6 and 5 carried by the upper'ends of the concentrically arranged wick.

Specification of'ietters Patent.

Fig. 2 is a transverse sectional" Patented Nov. 2. 1915..

needs n'o' 'further description. The perforated'combusti-on tubes *1 and 2 above the vertically disposed portions 3and l, are corrugated throughout their entire length whereby. the zigzag passage 9 isv formedand whereby the passage of the, air and gas up- 1 -wardly through the said passage causes. 4 My intention relates'to improvements in them to be thrownagainst the corrugated walls of both the inner and outer tubes l.

"mixing of the air and gas has taken place and thus. gives an absolutely odorless flame.

The inner combustion tube 1 is provided ad acent lts lower. end with the diaphragm 10 and adjacent its upper end with a dia-' phragm- 1]. having .openings'thereim'all of- Which is well understood and needs nofurther description. The inner combustion 'tube 1 extends about one-half inch above the outer" combustion tube 2 so "as to permit the freeescape of the flame when the burner is covered with a cooking vessel. The upper end of the inner perforated combustibntube 1 has a solid top 12. This extended end of the inner combustlon tube also prevents a- 'certaifi amount of the flame deflecting back between. the tubes whenthe burner is'c'overedv and it also make s a much" better looking flame. While I have shown and described'thisspe cific arrangement and combination of parts to accomplish the desired results, it will be understood that the same could be varied,

without departing frommy'inv'ention:

In the modification shown in Fig. 3 the inner combustion tube 13 has its walls strai ht whilethe outer tube 14 is corrugate. By. this arrangement it has been foundthat the air and gas will be thoroughly mixed. \Vhile I have showntheinner tube straight and the outer tube corrugated, it will'be'understood that the inner' tube can. be corrugated and the, outer trbe straight with the same results.

Having thus .fully described my invention What -I claim and desire'to secure by Letters Patent is:

1. A combustion section comprising concentric tubes having corrugations {oppositely arranged and extending in the same directionfor the purpose described. I

2. A'combustlon section comprising two tubes.

concentric combustion tubes having corruopposite corrugations extending in the same direction for the purpose described.

3. A combustion section comprising two concentrically arranged tubes having corrugations extending therearound throughout their entire length and oppositely arranged and extending in the same direction to form a zigzag passage between the perforated 4. A combustion section comprising two concentric tubes each having a plurality of oppositely arranged corrugationsextending in the same direction to form a zigzagv passage between the tubes for the purpose described.

5. A combustion section comprising two concentric tubes having oppositely arranged corrugations extending in the same direction to form a zigzag passage between the tubes, the inner tube extending slightly above the outer tube.

6. A combustion section comprising two concentric tubes having straight lower ends and in a horizontal alinement and having oppositely arranged corrugations extending in the same direction to form a zigzag passage between the tubes and the inner tube extending a slight distance above the outer tube, substantially as shownand described.

' 7. A combustion section comprising two concentric tubes having separate lower ends in a horizontal alinement and having oppositely arranged corrugations throughout their entire length and extending in the same direction to form a zigzag passage between the tubes, and' the inner tube extending a slight distance above the outer tube and having a closed upper end, substantially as shown and described. 7

In testimony whereof I hereunto afiix my signature in the presence of two witnesses.

, HENRY RUPPEL. Witnesses i a M. A. PossoNs, Gnonen Room. 

